CN1123751A - Middle shaft bidirectional speed variator - Google Patents

Middle shaft bidirectional speed variator Download PDF

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Publication number
CN1123751A
CN1123751A CN94112633A CN94112633A CN1123751A CN 1123751 A CN1123751 A CN 1123751A CN 94112633 A CN94112633 A CN 94112633A CN 94112633 A CN94112633 A CN 94112633A CN 1123751 A CN1123751 A CN 1123751A
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CN
China
Prior art keywords
wheel
ratchet
outer shroud
star
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN94112633A
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Chinese (zh)
Inventor
常殿林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN94112633A priority Critical patent/CN1123751A/en
Priority to US08/548,735 priority patent/US5647817A/en
Priority to TW084215720U priority patent/TW305337U/en
Priority to DE29517733U priority patent/DE29517733U1/en
Priority to CA002162656A priority patent/CA2162656A1/en
Priority to JP7299649A priority patent/JPH08207871A/en
Priority to FR9513801A priority patent/FR2727080B1/en
Priority to GB9523851A priority patent/GB2295427B/en
Priority to NL1001727A priority patent/NL1001727C2/en
Priority to KR2019950035231U priority patent/KR200246082Y1/en
Priority to BR7502640U priority patent/BR7502640U/en
Publication of CN1123751A publication Critical patent/CN1123751A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
    • B62M11/145—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears built in, or adjacent to, the bottom bracket
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/003—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion the gear-ratio being changed by inversion of torque direction
    • F16H3/005—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion the gear-ratio being changed by inversion of torque direction for gearings using gears having orbital motion

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Devices (AREA)
  • Transmissions By Endless Flexible Members (AREA)
  • Structure Of Transmissions (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

A bidirectional speed variator for central axle is composed of external ring, bearing ring, planetary wheel, screw rod, flat rod, core teeth, internal and external ratchets and chain wheel. The speed changer is arranged on the bicycle, so that the bicycle can realize the speed change in the same direction when the crank rotates in the forward and reverse directions.

Description

The axis bidirectional speed changer
The present invention relates to a kind of multi-step transmissions, specifically provide a kind of two-way dual-range transmission of axis that various bicycles use that is suitable for.
The axis of common bicycle (as bicycle) does not have speed changing function.For realizing the bicycle speed change, need to increase transmission system, for example, the sprocket piece that 2～5 different sizes are housed on the axis of bicycle is formed transmission system.This axis speed change is by changing the size of the sprocket wheel that drives chain, carrying out speed change.When the axis speed change, in driven off by shaft direction constant (unidirectional).
The present inventor once designed a kind of two-way two stage speed change flywheel (CN85202575) and a kind of bidirectional three-step gear shift flywheel (CN90105171.3) in early days.This flywheel, it can also play chronotropic action except the gearing that plays freewheel.Simultaneously, because the positive and negative bidirectional-movement of flywheel, all can make bicycle be subjected to forward power, therefore, this gear shift flywheel not only can be used as change-speed box, is installed on the common bicycle, can be used as physical culture device (fitness equipment) again and uses.
The purpose of this invention is to provide a kind of change-speed box that on axis, uses.This transmission system is not only simple in structure, also can two-wayly carry out speed change.For achieving the above object, the present invention has carried out significantly improving on the prior art basis, makes its structure simpler, installs and uses more convenient and safe.
Axis bidirectional speed changer of the present invention, it is by outer shroud, and bearing collar, star-wheel, silk retaining, flat retaining, core tooth, ratchet and sprocket wheel are formed.It is characterized in that outer shroud 1 endoporus has two Zhu Dao and internal tooth, outer garden has a chain for binding criminals line or Luo hole fixed chain wheels B; Bearing collar 2 is outer, a Zhu Dao is respectively arranged on the interior garden, and there is ratchet in the outside, and little axle 9 is adorned in the inboard, ratchet 4 and star-wheel 8 in being equipped with respectively on the little axle 9; 2,4,6 or 8 little axles 9 can be equipped with in bearing collar 2 inboards, on the little axle 91,2,3 or 4 interior ratchet 4 and star-wheel 8 are housed respectively; Axis 10 passes flat retaining 6, and core tooth 5 and silk shelves 3 insert among the center tap C on the vehicle frame, and crank A is equipped with in the outside, crank A, and axis 10, flat retaining 6 core teeth 5 and silk retaining 3 are fixed together; Outer ratchet 7 is installed on the sour jujube axle 11 that is fixed on the center tap C.Other structure of axis bidirectional speed changer of the present invention and the structural similitude of the gear shift flywheel that the present inventor provides in early days.
Accompanying drawing 1 is main TV structure figure of the present invention, and accompanying drawing 2 is along N-N face semisectional view.Among the figure: 1. outer shroud; 2. bearing collar; 3. silk keeps off; 4. interior ratchet; 5. core tooth; 6. flat retaining; 7. outer ratchet; 8. star-wheel; 9. little axle; 10. axis; 11. sour jujube axle; A is a Middle axle crank; B is for driving the sprocket wheel of chain; C is the center tap on the vehicle frame.
Middle shaft transmission shown in the accompanying drawing 1,2 can be used as one embodiment of the invention, below in conjunction with accompanying drawing technology of the present invention is given to illustrate further.
By accompanying drawing 1,2, in the axis bidirectional speed changer of the present invention, bearing collar 2 is a side with silk retaining 3, flat retaining 6 is opposite side supporting outer shroud 1, star-wheel 8 and interior ratchet 4 are housed between the internal tooth of outer shroud 1 and the core tooth 5, even for making application force, and simple in structure, the quantity of star axle 8 and interior ratchet 4 preferably is respectively 2 or 3, be installed on the bearing collar 2 by little axle 9 symmetries, crank A and axis 10 are fixing, core tooth 5, flat retaining 6, silk retaining 3 is fastened on respectively on the axis 10.Outer ratchet 7 is installed on the center tap C by the sour jujube axle 11 on the center tap C.Sprocket wheel B is fixed on the outer shroud 1 by positive thread on the outer shroud 1 or Luo hole.The technology that other structure and the present inventor of this change-speed box provide in earlier stage is similar, so no longer numerous stating.
The operational process of axis bidirectional speed changer of the present invention is as follows:
1. the normal speed operation of forward
Step crank A, axis 10 forwards (cw) are rotated, be fastened on core tooth 5 synchronized operations on the axis 10.Core tooth 5 will make outer shroud 1 and core tooth 5 backwards rotation by intermediary wheel star-wheel 8.But because interior ratchet 4 monodirectional locking outer shrouds 1 make it can only forward rotation, so outer shroud 1 also will be synchronously and the rotation of core tooth.At this moment, outer ratchet 7 becomes forward with the ratchet of bearing collar 2, and restrictive axes carrier ring 2 does not rotate.Outer shroud 1 makes the sprocket wheel B that fixes on it rotate again, will drive the chain operation.This moment, the operation of axis was identical with common bicycle axis running condition.
2. reverse low cruise
When axis 10 reverse (conter clockwise) rotated, outer ratchet 7 was lock shaft carrier ring 2, made it can not backwards rotation, and therefore, this moment, star-wheel 8 also was in stationary state.Star-wheel 8 becomes a fixing intermediary wheel.With the counter-rotational core tooth 5 of axis, make outer shroud 1 and its backwards rotation by star-wheel 8.At this moment, interior ratchet 4 is for forward, and outer shroud 1 will rotate smoothly, but its direction is opposite with core tooth direction, and promptly when axis 10 backward rotation, outer shroud 1 is forward rotation still, and drives sprocket wheel B and the operation of chain forward.When backward rotation, because the external diameter of core tooth 5 is less than the internal diameter of outer shroud 1, so during backward rotation, the revolution of outer shroud 1 is less than core tooth 5, promptly less than the revolution of crank A.Be low cruise this moment.
3. sliding and running
When crank stopped operating, core tooth 5 was motionless, and outer shroud 1 is under the drive of rear axle sprocket wheel, and with forward rotation, star-wheel 8 is also rotated by its effect thereupon, and drive bearing collar 2 rotates in the same way with outer shroud.At this moment, outer ratchet 7 is for forward, and interior ratchet 4 also is in forward, can not rotate by restrictive axes carrier ring 2.At this moment, outer shroud 1, bearing collar 2 all will rotate relative to core tooth 5, promptly finish the sliding and running of sprocket wheel B.
By above-mentioned, axis bidirectional speed changer of the present invention, it is simpler to have structure than prior art, installs more conveniently, uses also safety and reliability.Because the relative crank of sprocket wheel can slide, therefore, the flywheel on the trailing wheel can replace with common sprocket wheel, can reduce the cost of bicycle simultaneously.In addition, can assemble 2 groups of above sprocket wheels on the outer shroud 1 of this change-speed box, make change-speed box increase the speed change retaining, setting up of this step by-step variable gear can realize by common technology, and every increase a slice sprocket wheel can be realized the effect of two grades of speed changes.

Claims (3)

1. axis bidirectional speed changer, it is made up of outer shroud, bearing collar, star-wheel, silk shelves, flat shelves, core tooth, ratchet and sprocket wheel, it is characterized in that outer shroud (1) endoporus has two Zhu Dao and internal tooth, and outer garden has a chain for binding criminals line or the Luo hole is fixed with sprocket wheel (B); Outside the bearing collar (2), Yi Zhudao is arranged respectively on the interior garden, there is ratchet in the outside, and little axle (9) is equipped with in the inboard, on the little axle (9) interior ratchet (4) and star-wheel (8) is housed respectively; Axis (10), flat retaining (6), core tooth (5) and silk shelves (6) are fixed together; Outer ratchet (7) is installed on the sour jujube axle (11) that is fixed on the center tap (C).
2. according to the described axis bidirectional speed changer of claim 1, it is characterized in that bearing collar (2) inboard is equipped with 2,4,6 or 8 little axles (9) are equipped with 1,2,3 or 4 interior ratchets (4) and star-wheel (8) respectively on the little axle (9).
3. according to the described axis bidirectional speed changer of claim 1, it is characterized in that to assemble 2 groups with upper sprocket wheel on the outer shroud (1), make change-speed box increase gear.
CN94112633A 1994-11-23 1994-11-23 Middle shaft bidirectional speed variator Pending CN1123751A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
CN94112633A CN1123751A (en) 1994-11-23 1994-11-23 Middle shaft bidirectional speed variator
US08/548,735 US5647817A (en) 1994-11-23 1995-10-26 Two directional multi-speed shifting gear of middle axle
TW084215720U TW305337U (en) 1994-11-23 1995-11-03 Two-way gearshift device for axle
DE29517733U DE29517733U1 (en) 1994-11-23 1995-11-09 Dual-direction bottom bracket multi-speed gearshift
CA002162656A CA2162656A1 (en) 1994-11-23 1995-11-10 Two directional multi-speed shifting gear of middle axle
JP7299649A JPH08207871A (en) 1994-11-23 1995-11-17 Bidirectional operation multistage transmission intermediateaxle device
FR9513801A FR2727080B1 (en) 1994-11-23 1995-11-21 TWO-SPEED BIDIRECTIONAL CRANKSHAFT SPEED CHANGE FOR CYCLE
GB9523851A GB2295427B (en) 1994-11-23 1995-11-22 Crank assembly for a pedal-powered vehicle
NL1001727A NL1001727C2 (en) 1994-11-23 1995-11-23 Gear mechanism mounted on the bottom bracket of a bicycle.
KR2019950035231U KR200246082Y1 (en) 1994-11-23 1995-11-23 2-way transmission of the intermediate axle
BR7502640U BR7502640U (en) 1994-11-23 1995-11-23 Multi-speed bidirectional gearbox for driving axle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN94112633A CN1123751A (en) 1994-11-23 1994-11-23 Middle shaft bidirectional speed variator

Publications (1)

Publication Number Publication Date
CN1123751A true CN1123751A (en) 1996-06-05

Family

ID=5036305

Family Applications (1)

Application Number Title Priority Date Filing Date
CN94112633A Pending CN1123751A (en) 1994-11-23 1994-11-23 Middle shaft bidirectional speed variator

Country Status (11)

Country Link
US (1) US5647817A (en)
JP (1) JPH08207871A (en)
KR (1) KR200246082Y1 (en)
CN (1) CN1123751A (en)
BR (1) BR7502640U (en)
CA (1) CA2162656A1 (en)
DE (1) DE29517733U1 (en)
FR (1) FR2727080B1 (en)
GB (1) GB2295427B (en)
NL (1) NL1001727C2 (en)
TW (1) TW305337U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101797951B (en) * 2010-02-08 2013-01-09 蒋国良 Chain wheel device and electric vehicle

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* Cited by examiner, † Cited by third party
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KR100195515B1 (en) * 1996-12-30 1999-06-15 마재열 Forward driving apparatus' control device for bycyle
BR9809978A (en) * 1997-06-09 2000-08-01 World Ind Co Ltd Apparatus for changing the rotation of a bicycle pedal axle
JP3431475B2 (en) * 1997-12-12 2003-07-28 株式会社シマノ Bicycle front transmission
KR100258785B1 (en) * 1998-01-20 2000-06-15 마재열 Power changing apparatus of bicycle hub
EP1062148A1 (en) * 1998-03-11 2000-12-27 Lee, Yun-rak Traveling and accelerating system for bicycle
NL1008984C2 (en) 1998-04-24 1999-10-26 Hoogovens Staal Bv Drive system for bicycle
ES2155020B1 (en) * 1999-04-21 2001-11-16 Valdez Cuauhtemoctzin Castro DOUBLE TRACTION BIKE
CN1123706C (en) * 1999-06-24 2003-10-08 付景满 Flywheel
KR100361580B1 (en) * 2000-02-18 2002-11-21 코오롱산업 주식회사 Forward driving gear for bicycle
KR20020024168A (en) * 2002-01-30 2002-03-29 이광섭 one-way gear
KR20040045646A (en) * 2002-11-25 2004-06-02 오종수 Apparatus for changing speed of bicycles
KR100911151B1 (en) * 2007-01-16 2009-08-06 (주)엠비아이 Transmission for motor and controlling device thereof
US8100208B2 (en) * 2009-01-05 2012-01-24 Sram, Llc Drive system for driving a vehicle wheel
CN104883000B (en) * 2015-05-25 2017-06-06 严振华 The automobile-used variable deceleration of electrical salf-walking than wheel hub motor

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101797951B (en) * 2010-02-08 2013-01-09 蒋国良 Chain wheel device and electric vehicle

Also Published As

Publication number Publication date
TW305337U (en) 1997-05-11
NL1001727C2 (en) 1996-10-22
GB9523851D0 (en) 1996-01-24
KR960018106U (en) 1996-06-19
NL1001727A1 (en) 1996-05-23
DE29517733U1 (en) 1996-01-04
GB2295427A (en) 1996-05-29
KR200246082Y1 (en) 2002-04-22
CA2162656A1 (en) 1996-05-24
US5647817A (en) 1997-07-15
FR2727080A1 (en) 1996-05-24
BR7502640U (en) 1997-02-25
GB2295427B (en) 1998-06-10
FR2727080B1 (en) 1999-04-09
JPH08207871A (en) 1996-08-13

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